This is a boon for the abba-loving grade 2 pianist and some of the less successful singles, such as `the day before you came' and `Ring, ring' are included. Having said that, anyone hoping to present this to their piano-playing partner then bash their way through an abba hits collection from start to finish may have difficulties. Some of the keys are markedly different to the originals and most of the songs are incomplete. Many have verse and chorus but no middle section, several only have one or two verses, some have no introduction while a couple have a verse but no chorus (or vice versa). A couple (notably `winner takes it all') are more or less complete but overall, while this is worthwhile, customers should be aware of exactly what they are getting.